Hmonitor Pro

The program can monitor voltages, up to three CPU and motherboard temperatures, and cooling fan revolutions per minute. It uses memory economically by limiting its monitoring to the parameters collected by the LM75, LM78, LM79 or Winbond 83781 chips.

The program's interface lets you log and graph the output, set alarms, and customize the graphical display. In addition, the program provides software cooling, which can significantly decreases your CPU temperature while the system is idle, and CPU Throttling that can restrict CPU performance and heat production when the CPU becomes too hot.